CA2048997A1 - Method and apparatus for controlling the relative humidity in concrete and masonry structures - Google Patents

Method and apparatus for controlling the relative humidity in concrete and masonry structures

Info

Publication number
CA2048997A1
CA2048997A1 CA2048997A CA2048997A CA2048997A1 CA 2048997 A1 CA2048997 A1 CA 2048997A1 CA 2048997 A CA2048997 A CA 2048997A CA 2048997 A CA2048997 A CA 2048997A CA 2048997 A1 CA2048997 A1 CA 2048997A1
Authority
CA
Canada
Prior art keywords
pulse
duration
pulse sequence
anode
cathode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2048997A
Other languages
French (fr)
Other versions
CA2048997C (en
Inventor
Kjell Utklev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electro Pulse Technologies of America Inc
Original Assignee
Kjell Utklev
Elcraft A/S
Caribria Ltd.
Electro Pulse Technologies Of America, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kjell Utklev, Elcraft A/S, Caribria Ltd., Electro Pulse Technologies Of America, Inc. filed Critical Kjell Utklev
Publication of CA2048997A1 publication Critical patent/CA2048997A1/en
Application granted granted Critical
Publication of CA2048997C publication Critical patent/CA2048997C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • E04B1/7007—Drying or keeping dry, e.g. by air vents by using electricity, e.g. electro-osmosis

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Earth Drilling (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Elimination Of Static Electricity (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

A method and apparatus for expulsion or control of humidity in a concrete and/or masonry structure wherein one or more electrodes are provided in the structure. The electrodes are made of a non-corrosive material, and connected in series or parallel with the current source. An earth electrode is provided adjacent to or on the structure. The electrode(s) represents the anode and the earth electrode represents the cathode in an electrode circuit when they are connected with the respective outputs in the current source. The anode and cathode are provided with a pulse voltage supplied by the current source. The pulse voltage is delivered sequentially as pulse sequences of a given pattern.
The anode is fed with a pulse sequence generated with a first negative pulse, followed by a neutral interval of zero voltage of a duration between 0 - 2 times the duration of the negative pulse, followed by a positive pulse, the duration of which is about 6 times the duration of the negative pulse and by simultaneously feeding the cathode with a corresponding pulse sequence, but with inverted polarity. The method includes a first phase for quick reduction of the relative humidity in the structure (typically two weeks) with a pulse sequence frequency of about 1 - 0.5 Hz followed by a second phase for maintenance of a permanently low humidity content (with a pulse sequence frequency of about 0.2 - 0.1 times the pulse sequence frequency of the first phase).
CA002048997A 1989-03-10 1990-03-12 Method and apparatus for controlling the relative humidity in concrete and masonry structures Expired - Fee Related CA2048997C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO891034 1989-03-10
NO89891034A NO891034L (en) 1989-03-10 1989-03-10 PROCEDURE AND APPARATUS FOR MANAGING RELATIVE MOISTURE IN CONCRETE AND WALL CONSTRUCTIONS.
PCT/NO1990/000049 WO1990010767A1 (en) 1989-03-10 1990-03-12 Method and apparatus for controlling the relative humidity in concrete and masonry structures

Publications (2)

Publication Number Publication Date
CA2048997A1 true CA2048997A1 (en) 1990-09-11
CA2048997C CA2048997C (en) 2000-05-23

Family

ID=19891842

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002048997A Expired - Fee Related CA2048997C (en) 1989-03-10 1990-03-12 Method and apparatus for controlling the relative humidity in concrete and masonry structures

Country Status (13)

Country Link
US (1) US5368709A (en)
EP (1) EP0465482B1 (en)
JP (1) JPH04503983A (en)
AT (1) ATE146545T1 (en)
AU (1) AU651556B2 (en)
CA (1) CA2048997C (en)
DE (1) DE69029469T2 (en)
DK (1) DK0465482T3 (en)
ES (1) ES2099709T3 (en)
FI (1) FI98469C (en)
HK (1) HK1006867A1 (en)
NO (2) NO891034L (en)
WO (1) WO1990010767A1 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9513080D0 (en) * 1995-06-27 1995-08-30 Harden Technolgies Ltd Cathodic protection of metal reinforcement in cast building elements
GB2336602B (en) * 1995-06-27 2000-01-12 Harden Technolgies Ltd Method of effecting flow in porous ground
NO303820B1 (en) * 1995-07-19 1998-09-07 Elektro Puls Teknologier As Method and apparatus for regulating and optimizing the transport of liquid
FR2754076A1 (en) * 1996-10-01 1998-04-03 Mastchenko Alain Michel Method for control and regulation of the hydrometric rate of a chosen medium under the action of an electric current.
US5755945A (en) * 1996-10-11 1998-05-26 Electro Pulse Technologies Of America, Inc. Method for dehydrating capillary materials
FR2767849B1 (en) * 1997-08-27 1999-11-12 Financ Yves Judel Soc METHOD AND DEVICE FOR DEWATERING WALLS
DE19800597A1 (en) * 1998-01-09 1999-07-22 Hildegard Berger Device for dehumidifying and / or desalting buildings
CA2335388A1 (en) * 1998-02-27 1999-09-02 Francois Chasteau Method for assisted regulation of water quantity in a medium by the action of an electrical current
US6117295A (en) * 1998-04-15 2000-09-12 Drytronic, Inc. Method for dehydrating a porous material
DE50002005D1 (en) * 1999-09-15 2003-06-05 Citec Gmbh COMBINATION ELECTRODE FOR THE ELECTROCHEMICAL RENOVATION OF CORROSION-DAMAGED STEEL CONCRETE AND METHOD FOR THEIR CONTROL
US6387244B1 (en) * 2000-10-18 2002-05-14 Cor/Sci, Llc. Cathodic protection of reinforced concrete with impregnated corrosion inhibitor
US6419816B1 (en) * 2000-10-18 2002-07-16 Cor/Sci, Llc. Cathodic protection of steel in reinforced concrete with electroosmotic treatment
US6916411B2 (en) * 2002-02-22 2005-07-12 Lynntech, Inc. Method for electrically controlled demolition of concrete
US6919005B2 (en) * 2002-05-09 2005-07-19 The United States Of America As Represented By The Secretary Of The Army Configuration and electro-osmotic pulse (EOP) treatment for degrading porous material
US7935236B2 (en) * 2002-05-09 2011-05-03 The United States Of America As Represented By The Secretary Of The Army Electro-osmotic pulse (EOP) treatment method
US20040007342A1 (en) * 2002-07-09 2004-01-15 Coulter George Gary Process for the control of the physical and chemical characteristics of cellulose fiber containing molded articles
DE102005019220A1 (en) * 2005-04-22 2006-10-26 Egbert Nensel Electrical osmosis method for carrying out electrical osmosis in draining masonry/buildings applies a pulsed electrical voltage to electrodes in masonry/buildings and their surroundings
US20100006209A1 (en) * 2008-05-27 2010-01-14 Paul Femmer Process for protecting porous structure using nanoparticles driven by electrokinetic pulse
FR2933721B1 (en) * 2008-07-09 2012-09-28 Freyssinet PROCESS FOR SALT TREATMENT IN POROUS STRUCTURE AND CORRESPONDING DEVICE
DE102010052294A1 (en) 2010-11-23 2012-05-24 Eckhard Neuber Method for dehumidifying masonry of building, has suction device that is attached to free end of composite pipe that is attached to connecting hoses
DE102015002033A1 (en) * 2015-02-17 2016-09-01 Uwe Ohm Equipment for use in buildings; preferably in basements. The facility is referred to as the "Osmotic Barrier" and is designed to prevent or reduce penetration of soil from the soil into the masonry.
IT201700112493A1 (en) * 2017-10-06 2019-04-06 Hardsystem Srl Equipment and procedure for counteracting rising damp through at least one wall
US20210107842A1 (en) 2018-03-07 2021-04-15 Structural Technologies Method and apparatus for electrochemical treatment of concrete structures affected by ASR
CN111075034A (en) * 2018-10-19 2020-04-28 沈阳国建精材科技发展有限公司 Electroosmosis multi-wave pulse anti-seepage dehumidification system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649611C3 (en) * 1976-10-29 1983-12-29 Institutul De Cercetari In Constructii Si Economia Constructiilor - Incerc, Bucuresti Method and device for dehumidifying buildings and avoiding humidification or re-humidification
DE2722985C3 (en) * 1977-05-20 1981-09-10 Institutul De Cercetari In Constructii Si Economia Constructiilor - Incerc, Bucuresti Process for draining or maintaining basement masonry through active electroosmotic drainage
PL138249B1 (en) * 1981-04-24 1986-08-30 Politechnika Warszawska Method of protecting a wall of building structure against misture
AT375709B (en) * 1982-08-16 1984-09-10 Oppitz Hans METHOD FOR THE ELECTROOSMOTIC DRYING OF MASONRY OD. DGL.
DE3674921D1 (en) * 1985-11-19 1990-11-15 Andre Yves Jules Alloy TREATMENT METHOD FOR RISING MOISTURE IN WALLS AND ALIGNMENT FOR IMPLEMENTING THE SAME.
US5015351A (en) * 1989-04-04 1991-05-14 Miller John B Method for electrochemical treatment of porous building materials, particularly for drying and re-alkalization

Also Published As

Publication number Publication date
DE69029469T2 (en) 1997-04-03
AU651556B2 (en) 1994-07-28
ES2099709T3 (en) 1997-06-01
CA2048997C (en) 2000-05-23
FI98469C (en) 1997-06-25
NO913560D0 (en) 1991-09-10
HK1006867A1 (en) 1999-03-19
NO300448B1 (en) 1997-06-02
DK0465482T3 (en) 1997-04-14
EP0465482B1 (en) 1996-12-18
DE69029469D1 (en) 1997-01-30
US5368709A (en) 1994-11-29
NO891034L (en) 1990-09-11
AU5178390A (en) 1990-10-09
ATE146545T1 (en) 1997-01-15
WO1990010767A1 (en) 1990-09-20
FI98469B (en) 1997-03-14
EP0465482A1 (en) 1992-01-15
NO891034D0 (en) 1989-03-10
FI914248A0 (en) 1991-09-09
JPH04503983A (en) 1992-07-16
NO913560L (en) 1991-09-10

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